jQuery的数组值

Question

我有一个具有以下值的javascript数组，

let arr = ["2","4","6","8","10"];

我有第二个有三个整数的数组，

let index = [1,5,9];

我如何使用jQuery（或Javascript）来使用数组从arr获取索引，并将其添加到新数组中。我想将这些字符串添加到新数组中。

indexArr = ["1","3","5"]

由于

Answer 1

    $(document).ready(function(){
    var arr = ["2","4","6","8","10"];
    var index =  ["1","5","9"];
    var arrIndex = index.map(function(value){
             return arr.indexOf(value);
    })

    console.log(arrIndex);
    })
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>